Title:
ELECTRODE GROUP, BIPOLAR TYPE ELECTRODE GROUP, SECONDARY BATTERY, BATTERY PACK, VEHICLE AND STATIONARY POWER SOURCE
Document Type and Number:
Japanese Patent JP2022136651
Kind Code:
A
Abstract:
To provide an electrode group which can realize a secondary battery excellent in the life property by suppressing the mixture of electrolytes between positive and negative electrodes.SOLUTION: An electrode group is provided according to one embodiment. An electrode group comprises a first separator, a positive electrode, a second separator, a negative electrode and a third separator in a manner of being laminated in this order. A portion of the outer periphery of an opposed section between the first separator and the second separator is sealed by a first sealing part and the other portion is sealed by a second sealing part, to define a first space. A portion of the outer periphery of an opposed section between the second separator and the third separator is sealed by a third sealing part and the other portion is sealed by a fourth sealing part, to define a second space. The first space includes the positive electrode and a first electrolyte. The second pace includes the negative electrode and a second electrolyte. The position of the second sealing part and the position of the fourth sealing part do not overlap each other along the lamination direction of the first separator, the positive electrode, the second separator, the negative electrode and the third separator.SELECTED DRAWING: Figure 1
Inventors:
KYUSEKI HIROSHI
HOTTA YASUYUKI
KUBOKI TAKASHI
MATSUNO SHINSUKE
HOTTA YASUYUKI
KUBOKI TAKASHI
MATSUNO SHINSUKE
Application Number:
JP2021036363A
Publication Date:
September 21, 2022
Filing Date:
March 08, 2021
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
H01M10/0585; H01M10/052; H01M10/36; H01M50/409; H01M50/463
Attorney, Agent or Firm:
Masatoshi Kurata
Nobuhisa Nogawa
Tadashi Inoue
Ryuji Mine
Naoki Kono
Sanae Kaneko
Nobuhisa Nogawa
Tadashi Inoue
Ryuji Mine
Naoki Kono
Sanae Kaneko